Add method parameter for form helper

Rails
1

Hello,

Most of the form helpers are build using Object / Method without the
possibility of using a method parameter (as I know …)

text_field(object_name, method, options = {})

how do you solve this problem ?

-> (I did my own helper and generate the html … well I think there is
a better way;-)
-> do I have to overide text_field(object_name, method, parameters {},
options = {})

thanks
arnaud

2

hi bill,
Instead of a simple object method (without parameter) Person.firstName
=> text_field(“Person”,“firstName”)
I have something like Person.display(“firstName”) so the text_field
cannot be populate by the simple call Person.display … I need to give
the parameter for display method …

Thanks for help,

arnaud

Bill W. a écrit :

3

Hi Arnaud,

Arnaud G. wrote:

Most of the form helpers are build using Object / Method without the
possibility of using a method parameter (as I know …)

text_field(object_name, method, options = {})

how do you solve this problem ?

Could you say more about exactly what you’re trying to accomplish? I’m
not
sure what you mean by ‘method parameter’.

Best regards,
Bill

4

sorry bill but Person.firstname was just an example, I know that rails
will automatically call Person.firstname and populate the textfield …I
just write it to illustrate the mechanism that rails “just” call a
method on the object… The problem is how you do if you want to
populate with Object.method(param1) ?

Bill W. a écrit :

5

Hi Arnaud,

Arnaud G. wrote:

Instead of a simple object method (without parameter) Person.firstName =>
text_field(“Person”,“firstName”)
I have something like Person.display(“firstName”) so the text_field cannot
be populate by the simple call Person.display … I need to give the
parameter for display method …

text_field is already bound to the ‘firstName’ attribute of the ‘Person’
object in your example. You don’t need a display method to have your
view
display the value. You need to pass the ‘Person’ object to the view
from
the controller and text_field will automatically display the value of
the
attribute. To illustrate, let’s assume you’ve already entered a record
for
‘Dave’ and now want to edit it.

In your edit.rhtml view, you’ll have statements like…

<%= text_field ‘Person’, ‘firstName’ %>
<%= text_field ‘Person’, ‘lastName’ %>
<%= text_field ‘Person’, ‘address’ %>

In your controller, your edit action / method will look like…

def edit
@Person = Actor.find(:first, :conditions [“firstName = ?”, ‘Dave’] )
end

The controller code above assumes ‘Actor’ is the class name of the
Person
object.

One more note… you might want to take a look at the wiki or pick up a
book or two to get a handle on Rails naming conventions. Understanding
those conventions is a necessary first-step towards success with Rails.

hth,
Bill